Low-temperature (75 degrees C) solid-state reaction enhanced by less-crystallized nanoporous PbI2 films for efficient CH3NH3PbI3 perovskite solar cells
文献类型：期刊论文
| 作者 | Zheng, Huifeng1,2; Liu, Yangqiao1,3; Jing, Sun1 |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2017-05-31 |
| 卷号 | 405页码:412-419 |
| 关键词 | Perovskite solar cells Low-temperature annealing Solid-state reaction Nanoporous PbI2 Non-radiative defects |
| 英文摘要 | Organohalide perovskite films are usually prepared with the solid-state reaction at a high temperature >= 100 degrees C, which causes the increase of non-radiative defects and decomposition of perovskite films. Here, we demonstrate it's feasible to prepare high-quality perovskite films with the solid-state reaction method even at a temperature of 75 degrees C, when enhanced by less-crystallized nanoporous PbI2 (ln-PbI2) films. The replacement of compact PbI2 (c-PbI2) by In-PbI2, results in a significant improvement of crystallinity of perovskite films, besides the elimination of remnant PbI2, As a result, In-PbI2 based perovskite solar cells display much higher power conversion efficiency (PCE) and better stability. Moreover, annealing duration was found to be critical for high PCE and was optimized as 60 min. Finally, with the optimal process, the champion device displayed a PCE of 13.8% and the average PCE reached 10.1% with a satisfactory deviation. Furthermore, we found annealing at high temperature (140 degrees C) led to a lower PCE compared with that annealed at 75 degrees C, because non-radiative defects increased significantly during high-temperature annealing. This work may open up a promising avenue for preparing high-quality perovskite films with the low-temperature solid-state reaction method, which is desirable for real application. 2017 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| 研究领域[WOS] | Chemistry ; Materials Science ; Physics |
| 关键词[WOS] | SEQUENTIAL DEPOSITION ; THIN-FILMS ; 2-STEP DEPOSITION ; CHEMISTRY ; HUMIDITY ; FACILE ; GROWTH |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000397362400049 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23763]  |
| 专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 3.SICCAS, Suzhou Inst, 238 N Changchun Rd, Taicang 215499, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Huifeng,Liu, Yangqiao,Jing, Sun. Low-temperature (75 degrees C) solid-state reaction enhanced by less-crystallized nanoporous PbI2 films for efficient CH3NH3PbI3 perovskite solar cells[J]. APPLIED SURFACE SCIENCE,2017,405:412-419. |
| APA | Zheng, Huifeng,Liu, Yangqiao,&Jing, Sun.(2017).Low-temperature (75 degrees C) solid-state reaction enhanced by less-crystallized nanoporous PbI2 films for efficient CH3NH3PbI3 perovskite solar cells.APPLIED SURFACE SCIENCE,405,412-419. |
| MLA | Zheng, Huifeng,et al."Low-temperature (75 degrees C) solid-state reaction enhanced by less-crystallized nanoporous PbI2 films for efficient CH3NH3PbI3 perovskite solar cells".APPLIED SURFACE SCIENCE 405(2017):412-419. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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